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net/i40e/base: add EEE LPI status check for X722

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Add reading LPI (low power idle) status for supported X722 devices.
If adapter's PHY supports EEE in current mode (device ID + link speed),
LPI status is read from PHY Clause 45 PCS status register.

Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This commit is contained in:
Guinan Sun 2020-09-12 03:00:37 +00:00 committed by Ferruh Yigit
parent 2972fc3f40
commit 4b3e0ab701
1 changed files with 12 additions and 4 deletions
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16
drivers/net/i40e/base/i40e_common.c
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@ -7098,15 +7098,23 @@ enum i40e_status_code i40e_get_phy_lpi_status(struct i40e_hw *hw,
struct i40e_hw_port_stats *stat)
{
enum i40e_status_code ret = I40E_SUCCESS;
bool eee_mrvl_phy;
bool eee_bcm_phy;
u32 val;
stat->rx_lpi_status = 0;
stat->tx_lpi_status = 0;
if ((hw->device_id == I40E_DEV_ID_10G_BASE_T_BC ||
hw->device_id == I40E_DEV_ID_5G_BASE_T_BC) &&
(hw->phy.link_info.link_speed == I40E_LINK_SPEED_2_5GB ||
hw->phy.link_info.link_speed == I40E_LINK_SPEED_5GB)) {
eee_bcm_phy =
(hw->device_id == I40E_DEV_ID_10G_BASE_T_BC ||
hw->device_id == I40E_DEV_ID_5G_BASE_T_BC) &&
(hw->phy.link_info.link_speed == I40E_LINK_SPEED_2_5GB ||
hw->phy.link_info.link_speed == I40E_LINK_SPEED_5GB);
eee_mrvl_phy =
hw->device_id == I40E_DEV_ID_1G_BASE_T_X722;
if (eee_bcm_phy || eee_mrvl_phy) {
/* read Clause 45 PCS Status 1 register */
ret = i40e_aq_get_phy_register(hw,
I40E_AQ_PHY_REG_ACCESS_EXTERNAL,
I40E_BCM_PHY_PCS_STATUS1_PAGE,